SQL>createundo tablespace UNDOTBS2 datafile'D:\ORACLE\PRODUCT\11.2.0\ORADATA\ORCL\UNDOTBS02.DBF'size5000M; 切换到新的 Undo 表空间: SQL>ALTERSYSTEMSETUNDO_TABLESPACE=UNDOTBS2SCOPE=BOTH; 查看undo segment的状态,判断old undo
-- Check the current UNDO tablespace. showparameter undo_tablespace IfthereisnoUNDOtablespacetochangeto,createanewUNDOtablespace.CREATEUNDOTABLESPACESIZEAUTOEXTENDON; example: CREATEUNDOTABLESPACEUNDOTBS2datafileSIZE10MAUTOEXTENDON; Verify that the undo tablespace t...
Table Space Query select SEGMENT_NAME,bytes/1024/1024,a.* from dba_segments a UNDO Table Space Size Full 数据库重启 SQL> shutdown abort ORACLE 例程已经关闭。 SQL> quit 从Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production With the Partitioning, OLAP, Data Mining and Real...
1. Why does the Expired(40 GB) + Unexpired(136 GB) does not add up to 202 GB - the total Undo Tablespace size. 2. 5+ hours ago when I changed the Undo_Retention to 1800 seconds(1/2 hours) and no DML for last 6+ hours, I was expecting the Unexpired = close to zero. I don...
UNDO 表空间用于存放UNDO数据,当执行DML操作(INSERT,UPDATE和DELETE)时,oracle会将这些操作的旧数据写入到UNDO段。 在oracle9i之前,管理UNDO数据时使用(Rollback Segment)完成的.从oracle9i开始,管理UNDO数据不仅可以使用回滚段,还可以使用UNDO表空间。 10g开始貌似已经不在使用Rollback Segment来管理UNDO数据了,统一使用UN...
wherelower(name)='undo_tablespace')),2)PCT_INUSEFROMdual 2.2 查看当前事务占用的undo大小 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECTs.sid,s.username,s.program,t.name,t.used_ublk*(SELECTvalue/1024/1024FROMv$system_parameter2WHEREname='db_block_size')as"undoMB",flag,space,rec...
Database mounted.ORA-01092:ORACLEinstance terminated.Disconnection forced 2、故障分析 #下面是alert 日志信息 #我们收到了错误提示: ORA-30012,UNDOTBS1不存在或者类型错误 Wed Apr 23 10:19:49 HKT 2014 Errors in file /u02/database/BODB3/udump/bodb3_ora_819.trc: ORA-30012: undo tablespace 'UNDO...
CREATE UNDO TABLESPACE UNDO_1 datafile '+DATA' size 10G autoextend on; 1. PDB修改下原来11G基本一样,也要指定下SID(这里不是写数据库的实例名) alter system set undo_tablespace=UNDO_01 sid='orcl1' scope=both; 1. 然后使用如下SQL查看,回滚段是否己经切换到undo_01, ...
alter database UNDOTBS1 datafile '/opt/oracle/oradata/inms/undotbs02.dbf' resize 4000M; 二、创建新的UNDO表空间,删除原来的 1、创建新的UNDO表空间,并设置自动扩展参数; create undo tablespace undotbs2 datafile '/oradata/oradata/ddptest/UNDOTBS1.dbf' size 2 1000m reuse autoextend on next 800...
2 undotbs datafile '/u01/app/oracle/oradata/anny/undotbs01.dbf' size 100m 3 autoextend on next 10m maxsize 500m; Tablespace created. SQL> select tablespace_name,status,contents from dba_tablespaces; TABLESPACE STATUS CONTENTS --- --- --- SYSTEM ONLINE PERMANENT RTBS ONLINE UNDO SYSAUX ONL...